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Video: Dab tsi cov qauv ntawm lub sarcomere yog txuam nrog cov xub?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Nws yog hais txog actin filament cov . Actin filaments yog cov txheej txheem txheej txheem ntawm sarcomere uas tau txav mus los.
Kuj paub, dab tsi yog cov khoom ntawm sarcomere?
Ib tug sarcomere yog lub hauv paus contractile chav tsev ntawm nqaij fiber ntau. Txhua sarcomere yog tsim los ntawm ob lub ntsiab protein filaments-actin thiab myosin-uas yog lub luag haujlwm rau cov leeg nqaij contraction. Cov qauv nrov tshaj plaws uas piav qhia txog cov leeg nqaij leeg hu ua zawv zawg filament txoj kev xav.
Ib yam li ntawd, H Zone yog dab tsi? H cheeb tsam Thaj chaw ntawm cov leeg nqaij uas muaj cov leeg uas muaj cov tuab tuab xwb (myosin). Cov H cheeb tsam tshwm zoo li ib pab pawg sib zog nyob hauv nruab nrab ntawm qhov tsaus ntuj Ib pab pawg nyob nruab nrab ntawm sarcomere. Phau ntawv txhais lus ntawm Biology. × " H cheeb tsam ."
Tom qab ntawd, lo lus nug yog, H Zone txawv ntawm A band li cas?
A- Band : qhov sib piv qhov tsaus ntuj tag nrho hauv ib lub sarcomere. H - Zone : Kev faib tawm ntawm A- Band hauv nruab nrab ntawm sarcomere qhov twg tsuas yog cov tuab tuab yog tam sim no. Cov cheeb tsam no ntsws thaum lub cev nqaij ntshiv. Tuab Filaments: cov filaments, uas nthuav dav A- Band , yog tsim los ntawm cov protein myosin.
Yam twg ntawm cov ntaub nyias nyias ua rau txoj hlua tseem ceeb ntawm pearls?
Cov actin filament zoo li ob hlua ntawm pearls sib tw ua ke (Daim duab 8). Cov nyias filaments kuj muaj cov coiled protein tropomyosin, uas cua los ntawm cov zawj hauv actin filament . Globular troponin molecules khi ntawm qhov chaw raws tropomyosin.
Pom zoo:
Tus qauv ntawm sarcomere yog dab tsi?
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Sarcomere yog chav sib cog lus yooj yim ntawm cov leeg nqaij. Txhua tus sarcomere yog tsim los ntawm ob lub ntsiab lus tseem ceeb ntawm cov protein - actin thiab myosin - uas yog cov txheej txheem ua haujlwm muaj feem xyuam rau cov leeg nqaij. Cov qauv nrov tshaj plaws uas piav txog kev sib zog ntawm cov leeg yog hu ua zawv zawg filament theory
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Cov tsos mob: mob plab; Ntuav; Raws plab
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